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$212+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ONT
Mar 9 — Mar 161
Mon 3/9
Mon 3/16
1 adult, Economy
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Cheap flight deals from Pierre Elliott Trudeau Intl to Ontario

Cheapest flights from Pierre Elliott Trudeau Intl to Ontario
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 7, 2026.

This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/149:30 am
YUL
-
ONT
2 stops14h 30m
Delta
Sat 4/1810:15 pm
ONT
-
YUL
2 stops17h 36m
Delta
Deal found 2/6$530
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/144:55 pm
YUL
-
ONT
1 stop8h 31m
United Airlines
Sat 4/187:00 am
ONT
-
YUL
1 stop7h 30m
United Airlines
Deal found 2/6$572
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/194:45 pm
YUL
-
ONT
1 stop8h 33m
United Airlines
Tue 3/2411:59 pm
ONT
-
YUL
1 stop11h 01m
United Airlines
Deal found 2/5$573
This American Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/77:12 am
YUL
-
ONT
1 stop16h 50m
American Airlines
Sat 3/1410:36 pm
ONT
-
YUL
1 stop21h 08m
American Airlines
Deal found 2/5$574
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/134:45 pm
YUL
-
ONT
1 stop8h 33m
United Airlines
Tue 3/1711:59 pm
ONT
-
YUL
1 stop11h 01m
United Airlines
Deal found 2/5$577
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/232:13 pm
YUL
-
ONT
2 stops25h 05m
United Airlines
Mon 3/301:27 pm
ONT
-
YUL
2 stops18h 13m
United Airlines
Deal found 2/6$580
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/64:45 pm
YUL
-
ONT
2 stops10h 04m
Delta
Sat 3/1410:25 pm
ONT
-
YUL
1 stop10h 12m
Delta
Deal found 2/6$587
This United Airlines deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:00 am
YUL
-
ONT
2 stops18h 59m
United Airlines
Tue 3/1011:59 pm
ONT
-
YUL
1 stop18h 18m
United Airlines
Deal found 2/7$591
This United Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:00 am
YUL
-
ONT
1 stop19h 18m
United Airlines
Mon 3/911:59 pm
ONT
-
YUL
1 stop18h 18m
United Airlines
Deal found 2/5$592
This Delta deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:45 pm
YUL
-
ONT
1 stop12h 29m
Delta
Wed 11/2512:00 pm
ONT
-
YUL
1 stop8h 51m
Delta
Deal found 2/5$600

Find flight deals from Pierre Elliott Trudeau Intl to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$530
(Delta)

One-way from

$212
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$404
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-Ontario flight deals.
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Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-Ontario flights.
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From Montreal Pierre Elliott Trudeau Intl to Ontario
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One-way flight from Montreal Pierre Elliott Trudeau Intl to Ontario
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Highest demand for flights based on searches. 14% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 7, 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Ontario that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

Ontario

Route

Depart

Return

Price

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 4/14

9:30 am-9:00 pm

2 stops14h 30m

Ontario

Sat 4/18

10:15 pm-6:51 pm

2 stops17h 36m

$530

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Tue 4/14

4:55 pm-10:26 pm

1 stop8h 31m

Ontario

Sat 4/18

7:00 am-5:30 pm

1 stop7h 30m

$572

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 3/7

7:00 am-9:44 pm

2 stops17h 44m

Ontario

Sat 3/14

10:25 pm-11:37 am

1 stop10h 12m

$573

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 3/19

12:42 pm-9:00 pm

1 stop11h 18m

Ontario

Tue 3/24

10:25 pm-11:37 am

1 stop10h 12m

$573

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 3/19

4:45 pm-10:18 pm

1 stop8h 33m

Ontario

Tue 3/24

11:59 pm-2:00 pm

1 stop11h 01m

$576

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 6/19

9:45 am-10:28 pm

1 stop15h 43m

Ontario

Sun 6/28

7:00 am-9:34 pm

1 stop11h 34m

$576

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 3/13

4:45 pm-10:18 pm

1 stop8h 33m

Ontario

Tue 3/17

11:59 pm-2:00 pm

1 stop11h 01m

$577

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Wed 3/4

6:00 am-9:59 pm

2 stops18h 59m

Ontario

Tue 3/10

11:59 pm-9:17 pm

1 stop18h 18m

$591

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 4/4

6:45 am-7:19 pm

2 stops15h 34m

$212

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Mon 3/23

8:00 am-1:28 pm

3 stops56h 28m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/6

Showing 1-10 of 19 results
1
2
  • Most accurate provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montreal Pierre Elliott Trudeau Intl Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Pierre Elliott Trudeau Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Pierre Elliott Trudeau Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario?

Currently, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario (average of $134). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Ontario in November is currently the most expensive (average of $255). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Montreal Pierre Elliott Trudeau Intl?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Montreal Pierre Elliott Trudeau Intl. On average, Ontario has 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day from 0 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario?

    A quick flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario can take about 8h 31m. Delta provides one of the quickest options available for as low as $572. The distance between Montreal Pierre Elliott Trudeau Intl Airport and Ontario is about 2423 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Ontario that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to Ontario.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Ontario?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario?

    Currently, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario (average of $134). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Ontario in November is currently the most expensive (average of $255). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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